Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/tools/clang/include/clang/AST/ASTUnresolvedSet.h
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//===- ASTUnresolvedSet.h - Unresolved sets of declarations -----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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//  This file provides an UnresolvedSet-like class, whose contents are
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//  allocated using the allocator associated with an ASTContext.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_AST_ASTUNRESOLVEDSET_H
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#define LLVM_CLANG_AST_ASTUNRESOLVEDSET_H
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#include "clang/AST/ASTVector.h"
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#include "clang/AST/DeclAccessPair.h"
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#include "clang/AST/UnresolvedSet.h"
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#include "clang/Basic/Specifiers.h"
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#include <cassert>
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#include <cstdint>
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namespace clang {
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class NamedDecl;
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/// An UnresolvedSet-like class which uses the ASTContext's allocator.
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class ASTUnresolvedSet {
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  friend class LazyASTUnresolvedSet;
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  struct DeclsTy : ASTVector<DeclAccessPair> {
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4.64M
    DeclsTy() = default;
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0
    DeclsTy(ASTContext &C, unsigned N) : ASTVector<DeclAccessPair>(C, N) {}
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    bool isLazy() const { return getTag(); }
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    void setLazy(bool Lazy) { setTag(Lazy); }
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  };
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  DeclsTy Decls;
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public:
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  ASTUnresolvedSet() = default;
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  ASTUnresolvedSet(ASTContext &C, unsigned N) : Decls(C, N) {}
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  using iterator = UnresolvedSetIterator;
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  using const_iterator = UnresolvedSetIterator;
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  iterator begin() { return iterator(Decls.begin()); }
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  iterator end() { return iterator(Decls.end()); }
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  const_iterator begin() const { return const_iterator(Decls.begin()); }
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  const_iterator end() const { return const_iterator(Decls.end()); }
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  void addDecl(ASTContext &C, NamedDecl *D, AccessSpecifier AS) {
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    Decls.push_back(DeclAccessPair::make(D, AS), C);
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  }
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  /// Replaces the given declaration with the new one, once.
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  ///
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  /// \return true if the set changed
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  bool replace(const NamedDecl *Old, NamedDecl *New, AccessSpecifier AS) {
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    for (DeclsTy::iterator I = Decls.begin(), E = Decls.end(); I != E; ++I) {
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      if (I->getDecl() == Old) {
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        I->set(New, AS);
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        return true;
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      }
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    }
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    return false;
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  }
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  void erase(unsigned I) { Decls[I] = Decls.pop_back_val(); }
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  void clear() { Decls.clear(); }
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  bool empty() const { return Decls.empty(); }
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  unsigned size() const { return Decls.size(); }
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  void reserve(ASTContext &C, unsigned N) {
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    Decls.reserve(C, N);
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  }
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  void append(ASTContext &C, iterator I, iterator E) {
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    Decls.append(C, I.I, E.I);
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  }
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  DeclAccessPair &operator[](unsigned I) { return Decls[I]; }
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  const DeclAccessPair &operator[](unsigned I) const { return Decls[I]; }
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};
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/// An UnresolvedSet-like class that might not have been loaded from the
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/// external AST source yet.
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class LazyASTUnresolvedSet {
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  mutable ASTUnresolvedSet Impl;
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  void getFromExternalSource(ASTContext &C) const;
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public:
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  ASTUnresolvedSet &get(ASTContext &C) const {
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    if (Impl.Decls.isLazy())
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      getFromExternalSource(C);
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    return Impl;
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  }
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  void reserve(ASTContext &C, unsigned N) { Impl.reserve(C, N); }
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  void addLazyDecl(ASTContext &C, uintptr_t ID, AccessSpecifier AS) {
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    assert(Impl.empty() || Impl.Decls.isLazy());
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    Impl.Decls.setLazy(true);
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    Impl.addDecl(C, reinterpret_cast<NamedDecl *>(ID << 2), AS);
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  }
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};
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} // namespace clang
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#endif // LLVM_CLANG_AST_ASTUNRESOLVEDSET_H